金鋼砂 (gam1 gong3 saa1) — emery in Cantonese
gamˉ¹金gong˗₃鋼saaˉ¹砂简 金钢砂
Mandarin Pinyin: jin1 gang1 sha1
Meaning of 金鋼砂
nounemery
Characters in 金鋼砂
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